METHOD OF RESOURCE BLOCK (RB) BUNDLING

• US 20110110444A1
• Filed: 11/05/2010
• Published: 05/12/2011
• Est. Priority Date: 11/06/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Bonghoe, Noh, Yujin, Roh, Dongwook, Lee, Daewon, Kang, Byeongwoo
• Granted Patent: US 9,008,009 B2
• Time in Patent Office: Days
• US Class Current: 375/260
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04B 7/0634 Antenna weights or vector/matrix coefficients
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 1/0059 Convolutional codes
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 25/0232 by interpolation between sounding signals
• CPC Class Codes: H04L 27/2636 with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
• CPC Class Codes: H04L 27/26526 with inverse FFT [IFFT] or inverse DFT [IDFT] demodulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] receiver or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/00 : Local resource management
• CPC Class Codes: H04W 72/04 : Wireless resource allocation
• CPC Class Codes: H04W 72/044 : based on the type of the allocated resource
• CPC Class Codes: H04W 72/52 : based on load
• CPC Class Codes: H04W 72/53 : based on regulatory allocation policies

Abstract

A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one UE-specific demodulation reference signal; receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges.

Claims

1. A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system, the method comprising:

receiving configuration information related to at least one UE-specific demodulation reference signal;

receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data,

wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and

processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges.

2. The method of claim 1, wherein processing at least one of the received plurality of RBs comprises reporting at least a channel quality indicator (CQI), a precoder matrix indicator (PMI), or a rank indicator (RI).

3. The method of claim 1, wherein the size of each RB bundle comprises at least two RBs.

4. The method of claim 1, further comprising sizing an RB group for a downlink resource allocation according to the size of the system bandwidth, wherein each RB bundle is sized according to the size of the RB group.

5. The method of claim 3, wherein the size of each RB bundle is the same as the size of the RB group.

6. The method of claim 3, wherein the size of each RB bundle is a multiple of the size of the RB group.

7. The method of claim 1, further comprising receiving the size of a system bandwidth from a network.

8. The method of claim 1, wherein the size of each RB bundle is 1 RB when the system bandwidth is less than 10 RBs.

9. The method of claim 1, wherein the size of each RB bundle is 2 RBs when the system bandwidth is between 11 RBs and 26 RBs.

10. The method of claim 1, wherein the size of each RB bundle is 3 RBs when the system bandwidth is between 27 RBs and 63 RBs.

11. The method of claim 1, wherein each RB bundle comprises a plurality of contiguous RBs of the system bandwidth.

12. A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system, the method comprising:

transmitting configuration information related to at least one UE-specific demodulation reference signal;

transmitting a plurality of resource blocks (RBs) to a user equipment (UE), wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data,

wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and

receiving channel condition information from the UE, wherein the channel condition information is determined by processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges.

14. The UE of claim 12, wherein the size of each RB bundle comprises at least two RBs.

15. The UE of claim 12, wherein the processor sizes an RB group for a downlink resource allocation according to the size of the system bandwidth, wherein each RB bundle is sized according to the size of the RB group.

16. The UE of claim 14, wherein the size of each RB bundle is the same as the size of the RB group.

17. The UE of claim 14, wherein the size of each RB bundle is a multiple of the size of the RB group.

18. The UE of claim 12, wherein the RF unit receives the size of a system bandwidth from a network.

19. The UE of claim 12, wherein the size of each RB bundle is 1 RB when the system bandwidth is less than 10 RBs.

20. The UE of claim 12, wherein the size of each RB bundle is 2 RBs when the system bandwidth is between 11 RBs and 26 RBs.

21. The UE of claim 12, wherein the size of each RB bundle is 3 RBs when the system bandwidth is between 27 RBs and 63 RBs.

22. The UE of claim 12, wherein each RB bundle comprises a plurality of contiguous RBs of the system bandwidth.

13. A user equipment (UE) sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system, the UE comprising:

an RF unit for receiving configuration information related to at least one UE-specific demodulation reference signal and receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data,

wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and

a processor for processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges.